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To hyperthread, or not to hyperthread? That is the question! - Page 3

post #21 of 43
Quote:
Originally Posted by ghost_z View Post
this is absolutely wrong...99% of games natively does not support more than 4 physical cores natively....
it the os which is distributing the load across extra threads(thats why while running intensive games like gta 4 with ht onthe cpu is just 30-40% utilized),....
He never said anything about games supporting more cores natively. Regardless of whether a game supports HT or not, in some form you are benefiting by having HT on.
    
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post #22 of 43
Quote:
Originally Posted by amstech View Post
HT causes stuttering? Where? When?

And most games use 2 cores? Hmmm thats is changing as we speak.
Many use 3, or run MUCH BETTER on 3 or 4. And a large amount of available and upcoming new games/apps taken advantage of using multiple threads, like Battleforge, WoW, Crysis 2, BC3, and SC2.

And that is just playing the game by itself.
Media players and browers can take up cores/threads as well like Google Chrome.

And plus HT is not something you will notice by looking at a FPS chart.
It's ability to help an app handle and execute mutiple calculation tables makes things run much smoother without you noticing.


No.


Games/apps are eating up 8 threads now.
Playing Crysis 2, having Chrome open and a media player is 4-6 threads atleast/AT MINIMUM and full use of 4 cores.
And thats only right now.
and do u know there r hundreds of threads runnig in the background...then according to u even 100 thread cpu will not be enough....
it doesn't work like that its like this a processor can execute many threads in a second but one by one so its not like if u have chrome,media player and crysis open so ur quad is going to be saturated.....
..........
Edited by ghost_z - 2/24/11 at 11:15am
post #23 of 43
Quote:
Originally Posted by slothfish View Post
I have a 4ghz OC on my 920 with HT on, turned it off and got a 0C change in temps. It doesn't always lower your temps, try turning it on and see what happens...
My HT is turned on.... and the temps are higher, much higher with it on. if I turn it off I can do day to day things and keep the temp around ambient.

I guess I just not as lucky as you with your super chip there

I have also never seen a case where turning it off didn't lower temps, while under a load.... you are putting it under a load right???? Idle temps DO NOT COUNT
post #24 of 43
Quote:
Originally Posted by ghost_z View Post
and do u know there r hundreds of threads runnig in the background...then according to u even 100 thread cpu will not be enough....
it doesn't work like that its like this a processor can execute many threads in a second but one by one so its not like if u have chrome,media player and crysis open so ur quad is going to be saturated.....
absolute non sense..........
ya if it worked like that we would have well over 100+ threads needed to keep a CPU going. Luckily engineers aren't that stupid.

Like you said, each program doesn't get assigned a thread.
post #25 of 43
Quote:
Originally Posted by ghost_z View Post
this is absolutely wrong...99% of games natively does not support more than 4 physical cores natively.
This has absolutely NOTHING to do with what I said, nor does it logically apply to anything I stated.

Quote:
Originally Posted by ghost_z View Post
and do u know there r hundreds of threads runnig in the background..
There are different types of threads and processes.
You are putting them all in the same category, which by default shows how little your understanding of how CPU instruction sets and tables execute and operate.
Edited by amstech - 2/24/11 at 11:19am
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post #26 of 43
Thread Starter 
Quote:
Originally Posted by nickbaldwin86 View Post
My HT is turned on.... and the temps are higher, much higher with it on. if I turn it off I can do day to day things and keep the temp around ambient.

I guess I just not as lucky as you with your super chip there

I have also never seen a case where turning it off didn't lower temps, while under a load.... you are putting it under a load right???? Idle temps DO NOT COUNT
idle temps NEVER count lol. I have a friend who always compares his idle temps with everyone else's idles and he makes me rage. Gets his stupid pentium D overclock to 28C idle and he think hes better at overclocking than I am with my 920 at 35C with the overclock.
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post #27 of 43
Quote:
Originally Posted by amstech View Post
This has absolutely NOTHING to do with what I said, nor does it logically apply to anything I stated.


There are different types of threads and processes.
You are putting them all in the same category, which is false.
ok agreed about what u stated
but ur assumption that running 4 programs will saturate 4 threads of a quad is absolutely wrong......
post #28 of 43
Quote:
Originally Posted by ghost_z View Post
but ur assumption that running 4 programs will saturate 4 threads of a quad is absolutely wrong......
It depends on what those 4 programs are, what OS is running, what else is running, etc.
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post #29 of 43
if you have a program like burning dvd, or decompressing etc while playing then HT might help since it would take some load out of it but why would you do that since it would also cause stutter doesn't matter if you have HT on or off.

I keep HT OFF. i get -10c cooler, can overclocker higher with lower core, i get slighly bump in FPS in all my games. You have 4 physical core. You can still have app running and not be affected but people make it seem to be like you only have 1 physical core. Start running things in the background and open about 10 apps. you will see that non of this app will max out 1 core and we have 4 cores.

HT is a nice feature if you need a little bump in video encoding or decompressing but you will see NO diffferent in games or your regular day to day use.
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post #30 of 43
I have been in this debate for the past 2 months it seems. I seem to always fall back to the idea though that I paid the extra $100-130 for the Hyperthreading over the i5 so why shouldn't I put it to use? The difference between HT on and HT off isn't very significant in gaming and even in overclocking the difference seems to be 100-200MHz tops which isn't much by any standard nowadays. Just my two cents I guess
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